RedHat Linux upgrade

Question

I am upgrading to RHEL 4.0 from RHEL 3.0. I need to do a fresh install. I currently have 30+ luns assigned to this host. How so I insure that all the luns have the same psuedo names?

csmykay1 · Accepted Answer

Unless you want to backup all of your EMC PowerPath files (which are scattered around on the OS) then no not really. You would have to backup a couple different directories and files in order to accomplish this and I would NOT recommend it coming from RHEL 3.0 to RHEL 4.0.

It's actually quite easy to do once you have that list saved. It's just a pain to rename them all

Regards,
Shmac

csmykay1 · Answer

Do a 'powermt display dev=all' on your current RHEL 3.0 box.Output it to a file, save it and make sure you have an identifier to go off of. (Like LUN 20 = emcpowerb)Once you have that you can pull the host out of the SG, Reload the OS, Update everything (U4+), Install Navi, Install PowerPath, Add host to SG and then use the 'emcpadm' utility to change all of your psuedo names to the old ones you had.Oh yeah you may want to get a copy and paste of your /etc/fstab file to if you have that many Don't want to have to type all of that again.Hope this helps,Shmac

jim-N0W92 · Answer

Could I use the powermt save command to accomplish tis also?

csmykay1 · Answer

Jim,Just so you know the powermt save commands saves and changes you have made to your currently running configuration. It is not a backup and restore config or flag.Regards,Shmac

PowerPath

RedHat Linux upgrade

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